[GRASSLIST:10491] help with R and GRASS6

Carlos "Guâno" Grohmann carlos.grohmann at gmail.com
Tue Feb 21 12:56:41 EST 2006


Hello list

I've away from R a while, and now I'm struggling with it...
I read Bivand's artile in GRASS-News3, but I dindn't understant exactly how
the data is stored in R.

If I want to make a trend-surface analysis with surf.ls(), I need the x,y
and z coordinates of each point (or pixel), but I don't know how to get
these values

the whole idea is to make TSA, then variogram fitting in the residuals, then
krigging (maybe with gstat or geoR, still haven't decided)

thanks

--
+-----------------------------------------------------------+
              Carlos Henrique Grohmann - Guano
  Geologist M.Sc  - Doctorate Student at IGc-USP - Brazil
Linux User #89721  - carlos dot grohmann at gmail dot com
+-----------------------------------------------------------+
_________________
"Good morning, doctors. I have taken the liberty of removing Windows 95 from
my hard drive."
--The winning entry in a "What were HAL's first words" contest judged by
2001: A SPACE ODYSSEY creator Arthur C. Clarke
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